期刊
APPLIED PHYSICS LETTERS
卷 108, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4942890
关键词
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资金
- National Nature Science Foundation of China [11304327, 11404348, 11404350, 11234012]
- Ningbo Municipal Natural Science Foundation [2014A610011]
- Ningbo Science and Technology Innovation Team [2014B82004]
- Zhejiang Provincial Science Fund for Distinguished Young Scholars [LR16E020001]
N-type SnSe compound has been synthesized through melting with spark plasma sintering. By doping BiCl3, the carrier concentration of SnSe is significantly increased, leading to a large enhancement of electrical conductivity. Meanwhile, the SnSe0.95-BiCl3 samples also exhibit higher Seebeck coefficient and lower lattice thermal conductivity, compared with polycrystalline SnSe. Consequently, a high power factor of similar to 5 mu W cm(-1) K-2 and a ZT of 0.7 have been achieved at 793 K. The synergistic roles of BiCl3 doping in SnSe provide many opportunities in the optimization of n-type SnSe materials. (C) 2016 AIP Publishing LLC.
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